Oil-well jack.



PATENTED JULY 4, 1905.

J. W.. RHOADES.

OIL WELL JACK.

APPLIUATION FILED SEPTJM. 1904.

f @www Wtnesses: 2%

ttomegs.

No. 793,804. PATENTED JULY 4. 1005. J. W. RHOADHS.

OIL 'WELL JACK.

APPLICATION FILED SEPT. 2B, 1904.

2 SHEBTS-SHEET 2.

. Httomegs.

Lillo. 793,804,

tirarme Smarts fPatented July (l, .itgiilfx "tr-rrlnrr tllrrnonr SEECIFI'CATION forming part of Letters latent lilo. 793,@0Lt, dated July Il., 1905.v Application filed September 23, 1906i. Serial No. 226,402.

/'o rtf/Z wit/mt it 7111/14/ concer/1,.'

lie itknown that LJAM ns WILLIAM Rue/inns, a citizen of the United titatcs. residing' at Fostoria, in the coul'itv of Seneca and State of Ohio, have invented a new and useful Uil-Vliell Jack, of which the following' is a specification.

lhis invention relates to oil-well jacks.

rl`he object of the present invention is to 'facilitate the disconnection of the rock-beam from the polish-rod and its shifting' out o'f the path of movement thereof, thereby to permit the said rod readilji7 to be removed when necessary; fm'thermore, to improve the manner of connecting' the parts of the frame of the jack, whereby with the ,greatest simplicity of consti-notion the highest eliiciency and durability in use are secu red and liabilit \T of breakage in use reduced to a minimum.

l/Vth the above and other objects in view, as will appear as the nature of the invention is better understood, the same consists in the novel construction and combination of parts o f an oil-well jack, as will be hereinafter fully gleseribed and claimed.

ln the accoi'npanvine' drawings, forming' a part of this specilication, and in which like characters of reference indicate correspomling parts, there are illustrated t'wo forms of embodiment of the inventioi'i, each capable of carrying' the same into practical operation, it being' understood that the elements therein exhibited may be varied or cllang'cd as to shape, proportion, and exact manner of assemblage without r'lcl'iarting' `from the Ispirit thereof.

ln the drawingm VFigure l is a view in elevation of the prefm'red form of embodiment of the invention, showing' the saine in opera tive position with relation to a polish-rod of a pump. Fig. 2 is asimilar view showing' the roch-beam discoiin'ieetml `from the polish-rod and thrown back out of the path of the movement thereof. Fig'. 3 is a detail view in plan, showing` the connection between certain parts of the frame. liig'. et is a perspective detail view of an improved form of head-block or saddle. Fig. 5 is a similar view of an improved tail-block. Fig. f5 is a view in plan, partly in section, exhibiting the construction of the operatiiig-leveror (,lraw-bar. Fie'. 7 is ing-block and oil-cup used in connection with the operating-lever. lfiig'. 8 isa view in Vfront elevation of the head-block. Fig'. 9 is a collective detail view o'f an anchor-block for connecting' the structure with the casingdiead of the well. Fig'. il) is a perspective detail view of a slightly-modilied form of jack. Fig'. l1 is a detail view in plan of a part of the apparatos.

ln Figs. l to l) and Fig'. 1,1 there is shown the preferred form of embodiment o'f the inventi on in which all the parts thereof are con structed of metal, while in the form of the in vention. shown in Fie'. l0 the structure is comu posed partly of metal and partly of wood.

ln the preferred form of the invel'ition, l designates the ordinary casing-head of a well, El the stulling'diox, and l the polish-rod. As these parts may be of the usual or any preferred construction, illustration thereof is deemed um'ieccssary. rI he jack eou'iprises, as usual, a rock-beam consisting' of donl'ilearms l and E2, disposed when in normal position approximately at right angles to rnach other, a suliiiortine'standard consisting' of doublelce's il and el, and a rocking' beam-brace consisting of double arms The beam-arm l, as shown in liig'. 3, is an approximate U-shaped structure, the bend (5 of which is adapted to lit around a bearing' 7, carried b v a tail-blocl fl, the bearing' being provided with a longitudinal oriiice 9 to receive a bolt 10, carrying' a thmnb-nut ll, which operates to clamp the bend against tlie bearing, as clearly shown in Fie'. 3. The forward ends of the arms i are secured to a lieml-block, (designated generally i2,) which constitutes one of the essential points of the present invention and serves to connect the arms l and the beam-braces 5. 'lhis head-block is provided on each side with a. rccess ilS-, in which the arms l rest, the recesses being.; of adepth equal to the thicknessof the arms and are held assembled with the head-- bloei; by a bolt iland nut l5, the said bolt passing' through a transverse orifice lli in the luiad-block. The opposite shoulders 17 of the recesses 'form solid bearing-surfaces `for the tfiirmiuals of the arms l, thus to hold thorn against any vibratory movement when the a perspective detail view of a cmnbined spacl machine is in operation. The upper ends of Q Ci l OO

the beam braces or arms 5 are also combined with the head-block and bear against the outer sides of the terminals of the arms l and are held combined with the block through the medium ot' two bolts 18 and 19 and nuts 2O and 2l in addition to the bolt and nut 14 and 15, and by this means of securing the brace-rods `to the head not only are the arms l additionally held against displacement, but the bealnbraces are caused to perform their Vfunction in a manner that will be positive under all conditions. lt will be noted that the terminals of the arms 5 rest in sockets 22, formed in the sides of the head-block, and the walls of these sockets against which the upper ends of the beam-braces bear will operate to receive the jar and thrust, and thus relieve the bolts from undue strain and from any tendency to loosen. As will be seen by reference to Fig. 5, the upper side of the bearing T is rounded, as at 23, and is provided with a stop-flange 2.4. This rounded portion is engaged by the bend Z5 of the two arms 2 of the rock-beam and bears against the stop-flange 24, the said arms being combined with the tail-block by a bolt 2.6, which passes through an orifice 2T -in the bearing and carries a nut Q8. ',lo cause the connection between thearmsl and 2 and the tail-block to be of the firmest possible character, the latter is provided with shoulders Q7 and 2S, against which the respective arms rest, and are held thcreagainst through the medium of the bolts that combine them with the tail-block. This manner of combining the members of the rockbeam with the tail-block will be Vfound of the highest efiiciency in preventing any lost motion under the operation of the apparatus and not only obviates unnecessary wear of the parts, but also any loosening of the assemblingbolts. The standard, which, as before stated, consists of pairs of legs 3 and 4, is supported 'at the rear of the structure by comiecting the legs 3 to a bracket 2f), secured te the base B of the apparatus, and the legs 4 to an anchorblock Bl), secured to the casii'ig-head, the construction of which latter part will hereinafter be described. The legs 3 are disposed eXteriorly of the beam-arms 2, and the legs 4 are arranged outside the beam-braces 5, as will readilv be seen by reference to Fig. i, and by this arrangement side shake of the apparatus is in a large n'ieasure obviated. llhe bracket 2f) may be of the usual or any i'ne'ferred construction, and the legs 3 are held combined therewith through the medium of a bolt 3l and a nut 32, while the legs 4 are held combined with the anchor-block BO by a bolt and nut 34. Disposed at opposite sides of the tail-block is one of each of the legs 3 and 4, the legs 3 being disposed against the tailblock and the legs 4 against the legs 3, as will be readily understood by reference to Fig. 3, and the legs are held combined with the tailblock through a bolt 36, which passes through an orifice 3T, extending entirely through the tail-block, and is held in position by a nut 38. ln order to supply a lubricant te the bolt, there is an oil well or cup 39 provided in the tail-block which.communicates with the orilice 37 and operates in a manner that will be well understood to .feed oil to the parts to be lubricated in the operation of the machinery. The operating rod or lever 40 is constructed of four bars of metal 4l, 42, 43, and 44, the bars 4l and 42 having their forward portions spaced apart a sufficient distance to straddle the stufling-box S and their outer terminals bent inward and secured together by a bolt or rivet 45, an orifice 4G, disposed near the Vfree end of the rod, serving as a means of connection with a pitman -rod or other suitable means Yfor imparting a rocking movement to the beam. The rear portions of the bars 41 and 42 are deflected laterally, and connected to their inner sides are the bars43 and 44, which are likewise deflected laterally, the two pairs of bars 4l 43 and 42 44 forming two yokes 47 and 4S, between each of which is disposed one of the beam-lnaces 5 and one of the beam members 2, as clearly shown in Fig. (i. The two yokes 47 and 48 are held properly spaced by a spacing-block 49, which is combined with the bars 43 and 44 by a bolt 50 and nut 51, the bolt passing through an orifice 52 in the spacing-block provided for the purpose. The yokes 47 and 48 are combined with the spacing-block by a bolt and nut 54, the bolt being passed through suitable orifices in the bars 41-44, and through the beam members 2 and 5, andl through an orifice in the spacing-block. In order to supply a suitable lubricant to the bolt 53, which constitutes the pivot-bolt, each side of the headblock is provided with an oil-groove 56, which communicates with the orifice 55, as will be readily understood by reference to Fig. 7. By this manner of constructing the operatingrod and combining the beam members therewith the greatest stability' is secured with a maximum of lightness, and further side play or motion will be materially lessened, thereby reducing the wear upon the pivot-bolt 54. ln order to vary the throw of the rock-beam, which might be desired under certain conditions, the beam-braces and arms 9. are each provided with a plurality of orifices 5T and 5S, into which the pivot-bolt 54 may be shifted as required. The head-block, a detail View of which is shown in Fig. 4, is provided with lateral trunnions 59, having terminal upstanding ears 60, and these trunnions are engaged by the upper ends of a pair of links 61, the lower ends of the links having combined with them a polish-rod grip, (designated generally 62,) which latter' is also provided with laterally-projecting trunnions 63, having downward-extending ears 64. The upper ends of the links are provided with oil-holes 61u, by which a lubricant is supplied to the trunnions IIO l). lhe luiiction of the ears on the two sets ol trnnnions is to prevent accidental disconnection ol' the links therelrom, and to secure this result the openings in the links that engage the trunnions are approximately key hole-shaped and disposed in reverse orderh that is to say, the necks ot the openings in the upper ends oll the links 1 .)roject downward and those in the openings at the lower end ol the links project upward-m this beingl exactly in the reverse order of the disposition et the ears. The grip, to which reference has been made, comprises a head (SG and a clamp-plate G7, the opposed faces ot the two parts being' grooved to receive the polish-rod, and the clamp-plate beingl secured to the head and against the polish-rod through the medium oli a itl-shaped bolt 68, the ends oil which project through the clamp-plate and carry nuts (if). .Ils will be seen more particularly by reference to Fig', ll, the head-block is prom vided at its lower portion with an extension 70, and this extension as well as the outer face ol the head-block are provided, respectively, with alinedg'rooves 7l and 72, in which the polish-rod works, the two grooves coperating' to cause the polish-rod to move in a vertical line, and the approximate vertical disposition et the links, which is secured by the arrangement oli' the two sets ol trunnions., causing' the rod to move always in a vertical line, and thus reduce the power necessary to oi'ierate it. As stated at the outset olf the specilieation, one of the essential 'icati'ires o'lVl this invention is to permit disconnection ol the"beam l'rom the polish-rod and its shitting' out olE the path ol movenlent thereo'li. This is ell'eeted by loosening' the bolts 6), remov inn' the bolt lO, throwing' the bend o1E the arms l out olAl engagement with the bearim. slippingl the grip oill the polislrrod, and then moving' the brace, and with it the beamfarms l, to position shown in Fig. 2. Uri course it will he urulerstood that prior to loosening' the grip a stop-block i3 of the usual or any preu lerred coiistruction will be secured to the l'iolish-rod and will bear upon the upper end oi.E the stalling-box, and thus positively7 hold the polisli-r0d ilrom dropping'. rlhese parts are all that are necessary to be disturbeifl when the iwlislrrod is to be removed, and it will be seen Vthat this procedm'e may be ellected with but small losse!" time and at the expense ol the minimum oi labor. lhe anchor-block 3l), which combines the legs 4t with the easii1;,;'-head, isa segmental eastiing,l and is pro vided with a [lange Tl to engage with the ianire e ol the casinediead, as clearly shown in lfigx l, a itl-bolt i5 beine' empl i yed to complete the circle to surround the casingheadl 'lhe terminals oli' the til-bolt project through orilices 7f3, formed at the terminals of the anchor-block, nuts i7, screwed on the terminals olE the bolt, serving' to hold it positively eon'ibined with the block. '.lhe block iria urli is provided with two upstamling' lugs Trl, each having' a transverse oriliee 79, and through these two orilices passes the bol 23?), that serves to hold the legs Ulcombined with the anchor-block. The block is lurther provided with a lateral orilice 8O to receive a bolt, which by engagement with the casing-head will positively clamp the anchor-block against turning'. ,lhis manner oi coml lining' the standards 4l to the casing-head will result in an extremely rigid connection and one which will effectively prevent any rotary movement and thus strain to the apparatus when in operation.

.ln the form ol" the invention shown in Fig. il) the main dillerence resides in the lact that the roelobeam is constructed ol three wooden beams til, 82, and 83, the beam 82, which constitutes the brace, being secured to the beams 8l and 83 by straps Het and S5, ljiolted to the opposite sides thereo'li. At the rear oli the beam 8l and at the opposite sides thereof are bolted straps SG, (only one being' showin) the rear ends olf which project beyond the beam 83 and are threaded,and on the thread ed portions is arranged a clamp-plate HT, which is secured in position by nuts 88, one only of which is shown. The grip HS) is ol' the same construction as that already described and is combined in the same manner with the polish-rod. To ellect disconnection ol the beam membra Hl lrom the polish-rod to permit it to be removed to the position shown in itin'. 2, the upper bolt lll), which holds the straps S5 combined with the beam S1, is removed, and the nuts 89 are remover l and the clam pplate H7 detached, thereby permittinu' the roek-beam to be li'lted bodily lfrom the structure, it being; oi course under stood that the ,irri p has been loosened upon the polish rod in the manner already de scribed. lThis latter 'Form ot' the invention is cheaper ol' construction than the Vterm lirst described and will in many instances be Iound to be as ellicientin use. lt will be seen Vfrom the description inst `'iven that the 'feature common to both ol the apparatus is the adapt ability ol." shittingq the upper beai'n-arm and the disconnection ol the grip Yt'rom the poi ish-rod to permit removal ol thelatter.

`l'lfhile the lorms ol the invention herein shownand the manner ol combininnthe parts have been found thoroughly ellicirnt in use, it is to be understood that the invention is not to be .limited thereto, as various chanfeg'es in the lorm and manner ol assembling' the parts i'nay be adopted and still be within the scope o'l the invention.

llavinn thus described the invention, what is claimed is l. Alin an :mparatus ol the class describml, a

tail-block provided with a bearing; harianl a rounded crest, a rock-beam having' a member to straddle the hearing', and means for hold-- ing the inemberassembled with themil-blockn IOO IOS

il O

2. An apparatus olf the class described eemprising' a tail-bleek having a bearing' provided with a rounded Crest and with shoulders on eaeh side ot' the bearing, a roel -beam having' a member to straddle the bearingand to engage the crest and the shoulders, and means For holding' the membeil assembled with the tail-bleek.

An apparatus off the elassdeseribed eomprising,r a tail-bleek provided with a bearing' having` a Curved upper terminal and with vertieal and horizontal slimilders, a roch-beam having a vertieal member provided with a bend to straddle the bearingv and to engage the vertical shoulders, means lier holdingl the member assembled with the tail-bleek, a herizontal beam member adapted to straddle the said bearing` and the firstmamed beam member, and to engage the horizrmtal shoulders, and means for detaehably eonneetine the horizontal beam member with the tailbloel Li. Vln an apparatus of the Class described, the Combination with a rock-beam, oi? an operating-lever embodyine a pair et voles a combined oil-distrilmte and spacing-block interposed between the yolves, a rook-beam l l i l embodvingl vertieal and horizontal beam members and a beam-brace. the lower terminals of the vertical beam members and beam-lwaee being; disposed between the yokes, and pivot- J bolt passing through the yoke, spaeing-bloel; and beam members and beam-brace,

A n apparatus oi' the class deseribed comprising' a head-blo 1zl provided on its outer rfaee with a pluralityv of open-sided polish-red guides, trunnions projecting' laterally from the bleek, a polish-rod `guide supported by the trunnions, a tail-bleek provided with a bearing` having a rounded crest, a roel -beam embodying a member having one terminal seeu red to the head-block and its other terminal constructed te straddle the bearing of the tail-bleek, and means for detaehably eonneeting the rOCl -beam member with the tail-block.

in testimony that i Claim the foregoing as my own l have hereto allixed mv signature in the presence ol" two witnesses.

JAR/IES il' lLil AM RHOAD ES.

lvvi tnesses:

J. V. devils, i. XV. Nns'rnnnon. 

